Welcome to the National Physical Laboratory (NPL), the UK's National Measurement Institute and a world-leading center for accurate measurement standards, science, and technology. As the country's National Metrology Institute (NMI), NPL develops and maintains the national primary measurement standards and collaborates with other NMIs to uphold the international system of measurement. NPL plays a vital role in supporting the UK's prosperity and quality of life by delivering exceptional impact through measurement capabilities.

We develop the metrology required to ensure the successful deployment of new technologies and work closely with organizations as they develop and test innovative products and processes. In this digital age, our world-leading measurement science instills confidence in data, facilitating innovation and international trade. Aligned with the most crucial national challenges, such as energy, health, security, and net zero, NPL leads major national programs that have a far-reaching impact across the UK.

As a Public Corporation owned by the Department for Science, Innovation, and Technology, we work in partnership with the University of Strathclyde and the University of Surrey. With over 1,000 scientists, engineers, and skilled professionals, NPL offers cutting-edge measurement capabilities to help you innovate and gain a competitive edge. We serve as the UK's NMI, ensuring measurement results and data are traceable to SI units and provide confidence in your measurements.

Explore our website to learn more about our research, products, and services, and join our diverse community in shaping the future through accurate measurement. Sign up for NPL updates and stay informed about our latest activities, scientific breakthroughs, and expert opinions